Wouldn't 56.88% win rate be a effective loss overall? Assuming a standard betting unit of 1 (whatever 1 equals for you) a lot of games do not pay more than 100% roi.

Maybe a better question would be why is 56% good?

I'm brand new to sports betting so please don't take this question the wrong way.

My win rate has gone down from 64~%, I just keep updating it every time. However, I have stopped posting NCAA Basketball picks as much as before, as they have heavier favorites. NBA and especially NHL has better odds.